Koiyaktot Mountain--West

Occurrence in Alaska, United States with commodities Lead, Zinc, Silver

Geologic information

Identification information

Deposit ID 10003363
MRDS ID A106116
Record type Site
Current site name Koiyaktot Mountain--West

Geographic coordinates

Geographic coordinates: -156.30362, 68.22959 (WGS84)
Relative position Location plotted is approximate center of localities HP83-HP86 of Meyer and Kurtak (1992, fig. 2), in T33N, R11E; on small southwest flowing tributary draining northwest part of Koiyaktot Mountain, 5.5 mi (8.8 km) northwest of peak 4280; located to within 1 mi (1.6 km).
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Lead Primary
Zinc Primary
Silver Secondary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore
Quartz Gangue

Nearby scientific data

(1) -156.30362, 68.22959

Comments on the geologic information

  • Geologic Description = Float of quartz-cemented sandstone breccia locally contains massive sphalerite cut by quartz and galena veinlets in area of southwest-dipping Upper Devonian Kanayut Sandstone. Four separate small mineralized areas noted over a 0.5 mi (0.8 km) north-south trend; the largest is a 50 ft (15.2 m) x 300 ft (91.4 m) area of rubble and float of banded color-zoned sphalerite and minor galena veins cross-cutting fine-grained sandstone.????

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Colville

Comments on the workings information

  • Workings / Exploration = High-grade samples contain up to 43.9% Zn, 3.27% Pb and 7.15 oz per ton Ag (Meyer and Kurtak, 1992, p. 46-60).

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A106116
USGS Alaska Resource Data File ARDF HW017

Bibliographic references

  • Deposit

    Meyer, M.P., and Kurtak, J.M., 1992, Results of the 1991 U.S. Bureau of Mines Colville mining district study: U.S. Bureau of Mines Open-File Report 75-92, 101 p.

  • Deposit

    Jansons, Uldis, and Parke, M.A., 1981, 1978 mineral investigations in the Misheguk Mountain and Howard Pass quadrangles: U.S. Bureau of Mines Open-File Report 26-81, 193 p.

Comments on the references

  • Primary Reference = Meyer and Kurtak (1992)

General comments

Subject category Comment text
Deposit Model Name = Lode; sediment-hosted vein and breccia-vein Pb-Zn-Ag
Deposit Other Comments = See MAS/MILS Sequence #0020200015 (USBM, 1995)

Reporter information

Type Date Name Affiliation Comment
Reporter 30-SEP-1996 J.M. Schmidt U.S. Geological Survey
Reporter 30-SEP-1996 J.H. Dover U.S. Geological Survey